Storm Australian Severe Weather Forum

Severe Weather Discussion => Australian Severe Storms, Weather Events and Storm Chasing => Topic started by: Michael Bath on 23 October 2010, 02:14:15 AM

Title: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 23 October 2010, 02:14:15 AM
Should be some slow moving storms mainly along the ranges of NSW and S QLD this afternoon. Shear is pretty slack but could be something ok amongst it.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 23 October 2010, 10:24:33 AM
Couple of decent cells in the greater Sydney region though no STW as yet. Jimmy will have some reports from the cell tracking NW towards Wisemans Ferry later on.

Attached radar at 4.18pm EDT


Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: scottme on 23 October 2010, 11:14:18 AM
He's going to have some great shots if he followed the cell until Maitland.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Shaun Galman on 23 October 2010, 12:39:27 PM
Hi guys,

Boy the storms really went nuts on radar today! Still are now (6:37pm EDST) though cooling off a little by the looks.
Hoping it'll hold out until dark but the storms in my area are now just collapsing updrafts.
See how we go.

Can't wait to see the photos that Jimmy captured today!

Kindest regards.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 23 October 2010, 05:22:21 PM
Storm chase Dural to Maroota 22nd October 2010

Hi guys,

Unfortunately no good shots - problems with the camera lens and also too many trees!

Obviously I phoned Michael to let him know of the severe hailstones I was able to intercept today. As soon as school finished, I was already aware of a boundary interaction taking place from weakening storms on the mountains and the sea breeze.

Dural particularly just to the east was the first region to get hail to about 1cm falling steadily almost covering the road. I then ventured further north to intercept the flanking line developing along the boundary. I mostely took video but realised somehow that the lens on the camera was jammed somewhat creating issues when taking photographs.

As I arrived in Maroota, larger hail began to fall and almost pure hail. Hail was at least 2cm in diameter with the main core only hundreds of metres to the east and no roads. Hail fell for about 5 minutes before I decided to move on in order to see what structure may have existed. The storm was at this point though on a decline though surprisingly a slow decline.

Even when I arrived home, the storm was still existent! A bit of fun anyway.

(http://australiasevereweather.com/photo/cache/090___2010/070___22%2520october%25202010%2520jd/22_october_2010_weather_picture_005_by_jimmy_deguara.jpg.thumb.jpg) (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F070___22+october+2010+jd&twg_show=22_october_2010_weather_picture_005_by_jimmy_deguara.jpg)

(http://australiasevereweather.com/photo/cache/090___2010/070___22%2520october%25202010%2520jd/22_october_2010_weather_picture_006_by_jimmy_deguara.jpg.thumb.jpg) (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F070___22+october+2010+jd&twg_show=22_october_2010_weather_picture_006_by_jimmy_deguara.jpg)


Other pictures from this day (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F070___22+october+2010+jd)

Regards,
Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Richary on 23 October 2010, 06:35:10 PM
I was a touch surprised today to see the storms, I got to Mascot about 2pm and got onto a roof to see some nice cloud structure around but away in the distance. I later had a message from a friend who was at Stanwell Tops mentioning a big hail dump there. Probably from the storm I will include the photo of from the Mascot roof (taken on the phone as the camera was back in the car, didn't think I would need it).

Some light rain here at Rydalmere before I got home, and I got to see a bit of lightning in the distance from the storm cell up north of me as I was driving between 3-4pm. All really quick flashes though, not strobing so even if I had been close with the camera and lightning trigger wouldn't have caught anything.

Bilpin in the Blue Mts copped some hail from the news reports, and I thought the bureau might have issued some warnings given the heavy back cores both in the cells near Dural (that Jimmy caught) and also one near Maitland about 4pm.

Anyway, the photo attached is about 2:30pm looking south from Mascot. Some nice structure for this early in the season.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 24 October 2010, 03:27:25 AM
Hi Jimmy - you'll have to get that lens sorted out quickly but would have been fun to get some hail! The photos with the hail streaks are nice. Looks like a few cells had the hail reaching the severe category. Channel Ten showed a clip from Bilpin which had hail to about 2cm as well. Radar indicates they copped the hail at 12.40pm.

128km Radar Loop for Sydney (Terrey Hills), 23:00 21/10/2010 to 09:00 22/10/2010 UTC
(http://www.theweatherchaser.com/radar-thumb/IDR713/2010-10-21-23/2010-10-22-09/300.s.png) (http://www.theweatherchaser.com/radar-loop/IDR713-sydney-terrey-hills/2010-10-21-23/2010-10-22-09)
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 24 October 2010, 05:24:46 AM
Hi Michael,

I think the footage might have been from Matt Smith who reported hail nets to the ground - obviously the hail slides towrds the centre and the shear weight stretches it to the ground.

The hail in this storm was 'at least' 2cm most likely the main core was slightly to the east of the road. I would assume though that the largest hailstones would not have exceeded 3cm in diameter.

I have defintely more dents on the vehicle. If I have time, I will review the footage.

Regards,

Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 24 October 2010, 01:10:45 PM
Storm chase Sydney 23rd October 2010

Hi there,

Another brief chase in Sydney before turning around and heading home. I don't like the concept of chasing the suburbs of Sydney given the flash flooding potential. The storms once again developed rapidly and maximised with the outflow of storms. the boundary though was too far east to get too and they were not long lived.

(http://australiasevereweather.com/photo/cache/090___2010/069___23%2520october%25202010%2520jd/23_october_2010_weather_picture_005_by_jimmy_deguara.jpg.thumb.jpg) (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F069___23+october+2010+jd&twg_show=23_october_2010_weather_picture_005_by_jimmy_deguara.jpg)

(http://australiasevereweather.com/photo/cache/090___2010/069___23%2520october%25202010%2520jd/23_october_2010_weather_picture_011_by_jimmy_deguara.jpg.thumb.jpg) (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F069___23+october+2010+jd&twg_show=23_october_2010_weather_picture_011_by_jimmy_deguara.jpg)

Other pictures from this day (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F069___23+october+2010+jd)

Regards,

Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Richary on 24 October 2010, 07:23:00 PM
I was only local today (well yesterday now), left a friend's place at North Parramatta about 2 as it just started to rain. Looked towards the west and it didn't seem like anything was building quickly, but it seemed to. As I was out and about there was lots of overhead loud thunder but no strikes noticed, so I went and did the shopping. Coming out it was apparent there had been a bit of rain, and in the drive back from Baulkham Hills to home saw one ground strike a far way south. 9mm at Rydalmere while I was out. So nothing to photo, but the cloud did build quickly into storms but the cells weren't as organised as Friday. More thunder though.

Channel 9 also had a nice video of lightning hitting the Harbour Bridge or nearby on the news tonight, luckily not the pylon all our microwave gear is on or I would probably be doing a call out tomorrow.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 25 October 2010, 02:44:49 AM
Well today the focus is on the NE NSW SE QLD below is a quote from WZ

""Heading into this evening storms are continuing to push towards the northeast of the state, marching in advance of the trough. Tomorrow we can expect another bout of storms, but northern NSW and southern QLD will be the focus this time around.""

Below is todays Cape also i think  were in for a treat.

Antonio.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Steven on 25 October 2010, 10:26:40 AM
Im a little cautious about days like today. Weve got moisture and low wind shear to contend with (the latter being more of a concern). Things should begin to improve as the afternoon progresses. But until it does, you won't be seeing much if you're closer to the coast.

The activity out west around Warrego isn't going to reach us because the activity will have collapsed long before. Any activity further east of there may reach the coast by nightfall, but it will only be thundery rain.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 25 October 2010, 10:37:20 AM
Goonengerry to the west of Mullumbimby had 68mm in 2 hours to 3pm EDT though most of it would have been during one hour. Was watching it from here and cell did not move.

Certainly terrible shear today whichhas allowed some nice pulsey updrafts but not much else so far.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Clayton on 25 October 2010, 11:02:53 AM
It has been pouring down here in Tyalgum for the last 30-40min and I'd say at least 30mm in that time.
There has been some lightning very close to my house but not too much.
But it seems the cell due to the low shear today is just sitting over top of us and not moving an inch.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 25 October 2010, 12:24:14 PM
Today was a very warm very nice day went down to the break wall and saw some dolphins, i also saw some convection there. i then decided to head home and grab my cam and return to the wall and stayed there for about 2 hours watching it all get sorted out, once the first cells developed i went to the lookout which gave me a better view.

more storms are coming right now so if there is lightning here tonight i will post more images

Antonio.

early convection
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1803.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1807.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1814.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1820.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1824.jpg)
First cells near Casino and Byron bay
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1826.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1828.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1830.jpg)
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1836.jpg)
the Base of cell near Macleans ridges
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1837.jpg)
Cell moves north
(http://i733.photobucket.com/albums/ww337/pacificblue03/2010%20storm%20season/Img_1839.jpg)

EDIT:

I have created an animation of today's event of the Vis

http://i733.photobucket.com/albums/ww337/pacificblue03/Storm%20events/Animation1.gif (http://i733.photobucket.com/albums/ww337/pacificblue03/Storm%20events/Animation1.gif)
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Steven on 25 October 2010, 12:40:43 PM
A line of cells just east of Toowoomba is showing maximum reflectivity on the Doppler. It also has a bit of a 'v' shape to it. Hook echo perhaps?
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Colin Maitland on 25 October 2010, 02:05:43 PM
STW has been issued for that event Steven.

Brisbane is mentioned in STW for QLD 1 this time, but the storm is making and eastwards track and should reach us with in the next few hours.

SEVERE THUNDERSTORM WARNING - SOUTHEAST QUEENSLAND
for DAMAGING WIND, FLASH FLOODING and LARGE HAILSTONES

For people in the SCENIC RIM and parts of the LOCKYER VALLEY, IPSWICH CITY, SOUTHERN DOWNS, SOMERSET and TOOWOOMBA Council Areas.

Issued at 6:38 pm Sunday, 24 October 2010.

The Bureau of Meteorology warns that, at 6:35 pm, severe thunderstorms were detected on weather radar near Mount Barney, Moogerah, the area south of Cunninghams Gap, the area northwest of Cunninghams Gap, the area west of Toogoolawah and the area south of the NSW border. These thunderstorms are moving towards the east. They are forecast to affect the area southwest of Esk, the area west of Esk, the area northwest of Esk, Aratula, Rosevale and Mulgowie by 7:05 pm and Boonah, Esk, the area south of Esk, Kooralbyn, Harrisville and Grandchester by 7:35 pm.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jason(pato) on 25 October 2010, 02:29:26 PM
Just home from a chase around the NRs.....rain chased me home from Mallanganee. Will get some piccies up later. Line just hitting home now.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Steven on 25 October 2010, 04:08:15 PM
I was still hoping for the line out west to re-intensify, but it's looking very unlikely.

The Bureau cancelled its warning a while ago. I guess they don't think much else is going to eventuate tonight.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Hardy25 on 25 October 2010, 04:31:59 PM
A line of cells just east of Toowoomba is showing maximum reflectivity on the Doppler. It also has a bit of a 'v' shape to it. Hook echo perhaps?

did you mean bow echo?
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jason(pato) on 25 October 2010, 04:47:44 PM

24th October 2010 Storm Chase


Morning and early arvo commitments had me stranded at home till after 230pm. After checking the radar out and having a brief discussion with MB I decided to bite the bullet and try and intercept the storm that was drifting off the ranges towards the Coraki/ Woodburn area. However I left my run a tad late and only managed to get a couple of pics of the rear end.

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1250copy.jpg)

Storm over Nightcap Ranges/Border Ranges

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1256copy.jpg)

After a quick call to Rodney Wallbridge to find out where he was (near Tabulam) I decided to venture out to Mallanganee where stuff from over the border was moving towards. Being on the tallest point around it was quite a nerve wracking experience as numerous bolts began dropping into the valley below from a base which evolved quickly in the time I was observing. Rain soon forced me back into the car but not before I grabbed a couple of pics of the scene coming across the valley.

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1260copy.jpg)

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1297copy.jpg)

I then put a call into MB again who suggested to move east as the rain was going to be a nuisance so I moved back towards Casino and settled at a regular spot 5km nth of town. It was now apparent that the cells from earlier had merged into one great squall line. I stayed at the spot for a while before rain again made me beat a hasty retreat back towards Lismore. Did manage to score some bolts though.

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1300copy.jpg)

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1325copy.jpg)

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1375copy.jpg)

(http://i238.photobucket.com/albums/ff315/jaypat75/24th%20October%202010%20Northern%20Rivers%20storm%20chase/IMG_1384copy.jpg)
 
Got back to Lismore and ventured to another fave spot of mine to try for some more lightning but most stuff was embedded in the rain so I called it a night as the rain came pelting down again.

Was good to get out on my first chase of the season and although it wasn't unbelievably spectacular it was certainly nice to see lightning and hear the roll of thunder again.

Cheers Jason

PS Forgive the graininess of some of these pics....used a different photo editor than the usual PS I use.....didn't do the pics justice at all
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 26 October 2010, 03:10:05 AM
Looking amazingly green around Mallanganee Jase! Glad you were able to get out and about.


A few pics taken from McLeans Ridges, NSW yesterday (24th Oct)

It didn't take long for cumulus congestus to fire up. This taken at 11am:

(http://australiasevereweather.com/photography/photos/2010/1024mb01.jpg)

This is the cell that dumped nearly 70mm in about an hour on Goonengerry west of Mullumbimby:

(http://australiasevereweather.com/photography/photos/2010/1024mb06.jpg)

(http://australiasevereweather.com/photography/photos/2010/1024mb09.jpg)

Another cumulonimbus developed to my north. This was over the Nightcap Ranges. The activity in this area persisted for a couple of hours slowly edging towards the Murwillumbah area. The multicell made a nice backdrop to the V8 Supercar race on the Gold Coast:

(http://australiasevereweather.com/photography/photos/2010/1024mb11.jpg)

(http://australiasevereweather.com/photography/photos/2010/1024mb13.jpg)

The lightning was pretty elusive as the main line came through early evening. There was plenty of it - just hardly any was visible.

(http://australiasevereweather.com/photography/photos/2010/1024mb25.jpg)

(http://australiasevereweather.com/photography/photos/2010/1024mb28.jpg)


All photos taken on 24 October 2010 (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F068___24+october+2010+mb)

MB
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Paul D on 26 October 2010, 04:27:57 PM
Bit of lightning activity last night, and again today as a small cell moved over the coast producing a few isolated CG's
the two pic's below were around 1-19 pm this arvo as the storm moved in a more Ntherly direction over the coast hinterland.
(Gympie loop was out for a couple of hours this arvo during the period of better activity...)

(http://i979.photobucket.com/albums/ae277/DavJR17/Storms%202010-10/SunC25102010-0215.jpg)

(http://i979.photobucket.com/albums/ae277/DavJR17/Storms%202010-10/SunC25102010-0223.jpg)

PD
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Rodney Wallbridge on 26 October 2010, 04:49:44 PM
Gyday all, Yesterdays chase took me out to Tabulam just after lunch as atmosphere was to be saturated fairly quickly during the afternoon.
Some weak cells developed and tracked SE just east of Tabulam which produced thunder.
Moving south of Tabulam I observed some substantial cells building on the range. As i was driving into the backend of the isolated cell east of Tabulam the distinct sound of Hail on car resulted in a quick stop to allow it to get ahead. Was able to sneak around the side of this cell and take a few pics from the top of Mallanganee range as the squall line developed even snared a Cg!
Spoke to Jason on the Ph and found he was now back in casino.
The wet nature of todays cells made taking pictures outside not an option, so being out solo presented an easy opt for tripod and camera in front passenger seat which works well.Drove home in torrential rain and witnessed magnific CGs pounding the surrounding paddocks........one hammered the ground about 100mtrs behind my neighbours house so i waited for a bit to get out and open the gate :)
Todays storm which swept through Csino at 5pm was feeding on the Se winds managed to finish work at 4pm east of Lismore and be south of Casino before it got into town for a few pics. After more heavy rain at home, it was noted on WZ of a near record in rainfall for Casino. The record of 379.2mm in 1972 for October is near. My AWS presently has 340.2mm for October 6kms NE of town.

Here are a few piccies.
(http://www.australiasevereweather.com/rodney/20101024rwa.jpg)
(http://www.australiasevereweather.com/rodney/20101024rwb.jpg)
(http://www.australiasevereweather.com/rodney/20101024rwc.jpg)
(http://www.australiasevereweather.com/rodney/20101024rwd.jpg)
(http://www.australiasevereweather.com/rodney/20101024rwe.jpg)
(http://www.australiasevereweather.com/rodney/20101024rwf.jpg)
(http://www.australiasevereweather.com/rodney/20101025rwa.jpg)
(http://www.australiasevereweather.com/rodney/20101025rwb.jpg)
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: David C on 26 October 2010, 05:44:30 PM
Skipping back to Saturday, this cell developed over the central Sydney metro area and later gave flash flooding to the the inner suburbs, and I believe some hail as well.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 26 October 2010, 05:50:54 PM
David,

That is a solid and very interesting looking base! Glad you got to it as I could not get there in time - city is off limits to chasing!

Regards,

Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Clayton on 27 October 2010, 03:15:26 PM
Hey

I was able to get a few pictures of the isolated cell that hit Murwillumbah on the 25-10-2010 at around 1-2pm
I was at Tyalgum during the storm and it passed just South of my house so I was able to get a few pictures as it passed South of me
and before it hit Murwillumbah.

Heres the radar for the storm http://www.theweatherchaser.com/radar-loop/IDR663-brisbane/2010-10-25-02/2010-10-25-03 (http://www.theweatherchaser.com/radar-loop/IDR663-brisbane/2010-10-25-02/2010-10-25-03)


(http://img844.imageshack.us/img844/2081/25102010storm1.jpg)



(http://img513.imageshack.us/img513/3927/25102010storm2.jpg)



(http://img109.imageshack.us/img109/2901/25102010storm3.jpg)



(http://img801.imageshack.us/img801/724/25102010storm4.jpg)



(http://img641.imageshack.us/img641/1996/25102010storm5.jpg)



(http://img215.imageshack.us/img215/9450/25102010storm6.jpg)



(http://img4.imageshack.us/img4/9264/25102010storm8.jpg)


Hope you like the Pictures they aren't the best as they were only taken with a Point and Shoot Camera
Trying to save up for a new DSLR at the moment.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 27 October 2010, 03:18:26 PM
Hi John,

Quote
So Jimmy, any chance that the incidents with the lens will make you consider finally getting a new camera, or picking up a secondhand camera/lens so that you dont miss out again?

Haha:)

Definitely not considering it at this point - positioning was fine and the lens is working again - perhaps the issue was the snow chase a couple of weeks back. The camera works fine - I get sufficient sales from the current setup - getting a new one won't necessarily increase sales but will reduce profits.

Of course, feel free to donate a super sharp non-distorting lens with wide angle capabiilities if you wish:)

Regards,

Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Steven on 27 October 2010, 04:55:00 PM
did you mean bow echo?

Yes I meant "bow echo". A "hook echo" is something else I think, but it's easy to get weather terminology mixed up at times.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Harley Pearman on 28 October 2010, 11:30:21 AM
Western Sydney Thunderstorms 27 October 2010

I have only just returned to Sydney and I was not in any position to chase it. This afternoon at least three or four thunderstorm cells developed over Western Sydney roughly between Parramatta to the Blacktown area.

The first cell was small but dropped a heavy rain shower around the Parramatta and Westmead area. I was in Parramatta at the time. The storm dropped a considerable rain shower over a localised area before it weakened. There was another storm cell behind that.

A third storm later developed over Blacktown but matured over Seven Hills. I was in Seven Hills at the time and noted that the core passed over head where I was. This storm produced a considerable rain shower and a number of cloud to ground lightning strikes. This storm produced a very heavy rain shower but surprisingly no hail. Following that it appeared that a fourth storm cell matured on the southern side. I noted a low dark cloud base forming but it quickly became hidden by sudden and intense rain. This storm produced over Seven Hills an intense burst of rain as well as cold outflow winds from the east or south east. In addition, considerable runoff occurred. By the time the storm cleared, I observed some mammatus formations on the underside of the anvil. The storm started to weaken thereafter.

Unfortunately, I do not have any photos only because I was returning home after addressing my insurance matters and I did not have a camera with me.  

Early early rainfall totals strongly show a small area affected by the main storms with Blacktown Dog Pound receiving 12 mm followed by other falls of 4 mm to 10 mm but limited to an area around Parramatta to Blacktown to Baulkham Hills.

A radar image is provided below.

Harley Pearman
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 28 October 2010, 12:03:55 PM
Hi Harley,

Yes that dark base was interesting!

I left school and had to rapidly get through to road works and once I grabbed the camera gear, I photographed and filmed the interesting base. The storm looked to have supercellular characteristics which is confirmed by radar motion.

Hail to at least 1.5cm here. I would not mind seeing more

(http://australiasevereweather.com/photography/photos/2010/1027jd02.jpg)

(http://australiasevereweather.com/photography/photos/2010/1027jd17.jpg)

(http://australiasevereweather.com/photography/photos/2010/1027jd20.jpg)

(http://australiasevereweather.com/photography/photos/2010/1027jd22.jpg)

All photos taken on 27 October 2010 (http://australiasevereweather.com/photo/index.php?twg_album=090___2010%2F065___27+october+2010+jd)


Regards,

Jimmy Deguara
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 28 October 2010, 03:33:00 PM
Im not sure if it is even worth mentioning but very tiny but red cells developed here today

1) main one - Coffs harbour and up the coast to Yamba
2) Right now NW of Grafton

Are these tiny isolated ones worth it ever since WZ shows many CG's coming from it?

See : 128km Radar Loop for Grafton, 01:00 27/10/2010 to 11:00 27/10/2010 UTC
(http://www.theweatherchaser.com/radar-thumb/IDR283/2010-10-27-01/2010-10-27-11/300.s.png) (http://www.theweatherchaser.com/radar-loop/IDR283-grafton/2010-10-27-01/2010-10-27-11)

Antonio.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Richary on 28 October 2010, 04:28:41 PM
I was caught up in a meeting this afternoon at the office in Chatswood, so missed the buildup. My boss in the meeting got an EWN warning during it, presumably for his home at Castle Hill as I didn't get one until later on for my registered location.

Came out about 3:45 and checked the radar, and the cell that was near Robertson at the time looked particularly nasty with a nice black core. Apparently it fell apart as it came off the escarpment, but I had left by then. Lots of thunder at Chatswood but no lightning seen. Fairly consistent light rain on my drive from Chatswood to Wahroongha where I had to head after work at about 4:10 to pick something up.
Title: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Bath on 29 October 2010, 01:32:06 AM
Antonio - those were quite long lived cells for their size. No doubt they would have had some organised structure. Have seen something similar happen before though yesterday was not quite as strong: refer this thread (http://www.australiasevereweather.com/forum/australian-severe-storms-significant-weather-events-and-storm-chasing/thunderstorms-ne-nsw-se-qld-2nd-march-2007/)


Regarding the Sydney storms, the atmospheric profile certainly improved by afternoon as you can see in the attached sounding. The cell that passed over Robertson was pretty impressive too.

See : 128km Radar Loop for Sydney (Terrey Hills), 02:00 27/10/2010 to 08:00 27/10/2010 UTC
(http://www.theweatherchaser.com/radar-thumb/IDR713/2010-10-27-02/2010-10-27-08/300.s.png) (http://www.theweatherchaser.com/radar-loop/IDR713-sydney-terrey-hills/2010-10-27-02/2010-10-27-08)
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 29 October 2010, 01:52:56 AM
ok i see

This morning looks Fab from my place looking EAST huge and i mean huge Towering cumulonimbus from north right down to SW it is most likely Ballina and other Costal towns today will have huge bursts of rain. WZ also shows Lightning in those cells.

Antonio.
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 29 October 2010, 02:01:03 AM
Okay so just before i head out to TAFE today i have some pics of the cells in our entire ocean side, will be taking the cam to TAFE as today looks good for some storms

Antonio.
Title: Re: RE: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Thomas on 29 October 2010, 06:32:53 AM
Im not sure if it is even worth mentioning but very tiny but red cells developed here today

1) main one - Coffs harbour and up the coast to Yamba
2) Right now NW of Grafton

Are these tiny isolated ones worth it ever since WZ shows many CG's coming from it?

I agree with Michael, probably some organised structure there. I think one thing to point out is that you really can't judge a storm purely on size. For example, LP supercells, while having very little precipitation are capable of producing large hail. I can remember a storm near Lismore a while ago that didn't look particularly good on the Grafton radar but was producing 6 cm hail at the time. The condition on that day were a lot better than yesterday however.
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Michael Thomas on 29 October 2010, 07:00:13 AM
Here is the storm I was talking about-

http://www.australiasevereweather.com/forum/australian-severe-storms-significant-weather-events-and-storm-chasing/nsw-storms-27th-31st/30/ (http://www.australiasevereweather.com/forum/australian-severe-storms-significant-weather-events-and-storm-chasing/nsw-storms-27th-31st/30/)

http://australiasevereweather.com/storm_news/2008/radar/20081230/grafton128.htm (http://australiasevereweather.com/storm_news/2008/radar/20081230/grafton128.htm)

Not making any comparisons to yesterday but I do suggest having a look at the radar (especially in the early stages) and then compare to some of the photos. Shows you don't need a massive big black core to have amazing structure and severe weather.
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: enak_12 on 29 October 2010, 10:09:03 AM
Hey guys, that cell that passed near Wooli was certainly long lived, I wish I could have chased it. Also it seemed to deviate a bit. I took these shots of it when it was around Maclean after tafe.

(http://i27.photobucket.com/albums/c172/enak12/October%2027%202010/Untitled_Panorama1221.jpg)

(http://i27.photobucket.com/albums/c172/enak12/October%2027%202010/IMG_0245.jpg)
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Antonio (stormboy) on 29 October 2010, 12:42:51 PM
An unusually heavy isolated and small cell over us at the moment Radar not showing it well though

10.8mm this hour go here http://www.ballina-nsw-weather-from-stormboy.com/trends.htm (http://www.ballina-nsw-weather-from-stormboy.com/trends.htm) Click on rain today

it is now almost gone but for a few minutes very heavy Image below is the cell in early development

Antonio.
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: enak_12 on 29 October 2010, 03:49:04 PM
Hey guys I went out to Mylstom tonight to wait for some lightning but it wasnt to be :( but I did score a distant possible waterspout instead. This came from the shower just off Nambucca Heads.

(http://i27.photobucket.com/albums/c172/enak12/October%2028%202010/IMG_1998copy.jpg)

(http://i27.photobucket.com/albums/c172/enak12/October%2028%202010/IMG_1996copy.jpg)

(http://i27.photobucket.com/albums/c172/enak12/October%2028%202010/IMG_19561copy.jpg)
This one was taken before the waterspout, thats just scud.
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: James on 29 October 2010, 04:26:56 PM
A Couple of photos from today.

The first storm of the day about to pass over Beaudesert. Personally I wasnt that excited by this storm, sure it had some pretty nasty rain & small hail however most of the lightning was hidden amongst the rain and the structure was sort of ok (another Shelf Cloud). It may have got better as it moved north however at that point I wanted to stay clear of the city. Maybe I'm getting picky in my old age.

  (http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs446.ash2/71941_486649243522_727193522_6818879_6610440_n.jpg) 

I decided to head west to the Downs where I was hoping the warmer air, good moisture and elevated ground would create some storms with a bit more isolated structure. On the way I got a nice side view of the big storm heading towards Toowoomba. Huge anvil spreading off to the SE with some nice structure in the distance

  (http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs468.ash2/74175_486649298522_727193522_6818882_7494601_n.jpg)   

The surface easterly was pushing nicely up over the range creating some nice inflow into a developing storm near Freestone. I watched for the next hour as this base developed into a nice little storm. The storm gave some great CG's, heavy rain, hail to 2cm (mostly around 1cm) and some nice base structure. The base had some short lived rotation that produced a nice scud lowering (last picture) before a strong downdraft and outflow took over.

  (http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs814.snc4/69429_486649333522_727193522_6818883_7831875_n.jpg) 

  (http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs923.snc4/73638_486649353522_727193522_6818884_4638735_n.jpg)

  (http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs265.snc4/39591_486649453522_727193522_6818888_2091566_n.jpg)

  (http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs889.snc4/72262_486649483522_727193522_6818889_693568_n.jpg) 

Plenty of flash flooding on the roads and in the fields.

  (http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs917.snc4/73046_486649518522_727193522_6818891_4830572_n.jpg) 
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: James on 30 October 2010, 07:23:20 AM
Some time-lapse of the Freestone-Allora storm in its last stages. Nice downdraft to cap it off towards the end of the video. Most of the lightning was off to the left of screen.

Allora Storm Time Lapse 28 Oct 2010 (http://www.youtube.com/watch?v=8F4m4v48v6A#ws)
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 07 November 2010, 12:42:46 AM
Hi James,

Nice base and powerful convection - that region is primed for severe storms.

Storm Chase with timelapse and hail Schofields and NW Sydney 27th October 2010
I have upload a video for the 27th October supercell looking structure. Comments would be appreciated. Above the base you can see the updraft possibly rotating. Nevertheless, not a bad structure to pass right over your house!

Supercell northwestern Sydney 27th October 2010 (http://www.youtube.com/watch?v=BP-SmnHnw8o#ws)

Regards,

Jimmy Deguara
Title: Re: NSW & SE QLD Storms 22 - 28 October 2010
Post by: Jimmy Deguara on 07 November 2010, 02:30:44 AM
31st October 2010 storm observed from near Gosford

Severe storms were reported on the 31st October 2010. This was not one of them - I decided to stop and take a look at this one on the way up to intercept other severe storms but they had run out of steam by pulsing into severe limits and dying. So this was the best on radar late in the day in a slightly better shear environment. Love the cotton wool upstairs but look pst those and there were some half decent updrafts but I would say more of a relaxation time out in between storm days with family

storm timelapse near Gosford (http://www.youtube.com/watch?v=SH3jQ7N7ZFw#ws)

Regards,

Jimmy Deguara